Let's divide 21063723 by 857
We're looking to find how many times 857 goes into 21063723.

Step 1:
857 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 857

Moving on to step 2:
When dividing 21 by 857, we get 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Grab the next digit (0) from the dividend, add it to 21, then carry on: 210 / 857

Advancing to step 3:
When dividing 210 by 857, we get 0 with a remainder of 210.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 210 and we're left with 210.
Include the next digit (6) from the dividend after 210, then repeat: 2106 / 857

Advancing to step 4:
The number 857 fits into 2106 2 times, leaving a remainder of 392.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 1714 from 2106 and we're left with 392.
Fetch the next digit (3) from the dividend, attach it to 392 and continue: 3923 / 857

Let's proceed to step 5:
If we divide 3923 by 857, we get 4 and a remainder of 495.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Deduct 3428 from 3923 and we're left with 495.
Append the next digit (7) from the dividend to 495 and continue with: 4957 / 857

Let's proceed to step 6:
The number 857 fits into 4957 5 times, leaving a remainder of 672.
The next digit of our result is 5. 
Result so far: 245.0
Subtract 4285 from 4957 to get 672.
Include the next digit (2) from the dividend after 672, then repeat: 6722 / 857

Moving on to step 7:
857 can be fit into 6722 7 times, resulting in a remainder of 723.
Use 7 as the next digit of our solution. 
Result so far: 2457.0
Subtracting 5999 from 6722 leaves us with 723.
Bring next digit (3) of the dividend behind the 723 and repeat the process: 7233 / 857

Going ahead to step 8:
When dividing 7233 by 857, we get 8 with a remainder of 377.
Write down 8 as next digit of the result. 
Result so far: 24578.0
Subtracting 6856 from 7233 leaves us with 377.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3770, and continue the process.

Advancing to step 9:
3770 divided by 857 is 4 with a remainder of 342.
The next digit of our result is 4. 
Result so far: 24578.4
If we subtract 3428 from 3770, we get 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Advancing to step 10:
When dividing 3420 by 857, we get 3 with a remainder of 849.
Write down 3 as next digit of the result. 
Result so far: 24578.43
The remainder is 849 after subtracting 2571 from 3420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8490, and continue the process.

Going ahead to step 11:
857 goes into 8490 9 times with a remainder of 777.
Put 9 as the next digit of the answer. 
Result so far: 24578.439
If we take 7713 away from 8490, we end up with 777.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7770, and continue the process.

Step 12:
The number 857 fits into 7770 9 times, leaving a remainder of 57.
Use 9 as the next digit of our solution. 
Result so far: 24578.4399
If we subtract 7713 from 7770, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

In conclusion, the division gives 24578.4399 with a balance of 0.00057.